From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/include/linux/sunrpc/auth.h | 113 ++++++++++++++++++--------------------------------------
1 files changed, 37 insertions(+), 76 deletions(-)
diff --git a/kernel/include/linux/sunrpc/auth.h b/kernel/include/linux/sunrpc/auth.h
index 58a6765..98da816 100644
--- a/kernel/include/linux/sunrpc/auth.h
+++ b/kernel/include/linux/sunrpc/auth.h
@@ -10,8 +10,6 @@
#ifndef _LINUX_SUNRPC_AUTH_H
#define _LINUX_SUNRPC_AUTH_H
-#ifdef __KERNEL__
-
#include <linux/sunrpc/sched.h>
#include <linux/sunrpc/msg_prot.h>
#include <linux/sunrpc/xdr.h>
@@ -37,21 +35,9 @@
struct rpcsec_gss_info;
-/* auth_cred ac_flags bits */
-enum {
- RPC_CRED_KEY_EXPIRE_SOON = 1, /* underlying cred key will expire soon */
- RPC_CRED_NOTIFY_TIMEOUT = 2, /* nofity generic cred when underlying
- key will expire soon */
-};
-
-/* Work around the lack of a VFS credential */
struct auth_cred {
- kuid_t uid;
- kgid_t gid;
- struct group_info *group_info;
- const char *principal;
- unsigned long ac_flags;
- unsigned char machine_cred : 1;
+ const struct cred *cred;
+ const char *principal; /* If present, this is a machine credential */
};
/*
@@ -67,9 +53,8 @@
const struct rpc_credops *cr_ops;
unsigned long cr_expire; /* when to gc */
unsigned long cr_flags; /* various flags */
- atomic_t cr_count; /* ref count */
-
- kuid_t cr_uid;
+ refcount_t cr_count; /* ref count */
+ const struct cred *cr_cred;
/* per-flavor data */
};
@@ -78,8 +63,7 @@
#define RPCAUTH_CRED_HASHED 2
#define RPCAUTH_CRED_NEGATIVE 3
-/* rpc_auth au_flags */
-#define RPCAUTH_AUTH_NO_CRKEY_TIMEOUT 0x0001 /* underlying cred has no key timeout */
+const struct cred *rpc_machine_cred(void);
/*
* Client authentication handle
@@ -88,26 +72,25 @@
struct rpc_authops;
struct rpc_auth {
unsigned int au_cslack; /* call cred size estimate */
- /* guess at number of u32's auth adds before
- * reply data; normally the verifier size: */
- unsigned int au_rslack;
- /* for gss, used to calculate au_rslack: */
- unsigned int au_verfsize;
+ unsigned int au_rslack; /* reply cred size estimate */
+ unsigned int au_verfsize; /* size of reply verifier */
+ unsigned int au_ralign; /* words before UL header */
- unsigned int au_flags; /* various flags */
- const struct rpc_authops *au_ops; /* operations */
+ unsigned long au_flags;
+ const struct rpc_authops *au_ops;
rpc_authflavor_t au_flavor; /* pseudoflavor (note may
* differ from the flavor in
* au_ops->au_flavor in gss
* case) */
- atomic_t au_count; /* Reference counter */
+ refcount_t au_count; /* Reference counter */
struct rpc_cred_cache * au_credcache;
/* per-flavor data */
};
/* rpc_auth au_flags */
-#define RPCAUTH_AUTH_DATATOUCH 0x00000002
+#define RPCAUTH_AUTH_DATATOUCH (1)
+#define RPCAUTH_AUTH_UPDATE_SLACK (2)
struct rpc_auth_create_args {
rpc_authflavor_t pseudoflavor;
@@ -116,7 +99,6 @@
/* Flags for rpcauth_lookupcred() */
#define RPCAUTH_LOOKUP_NEW 0x01 /* Accept an uninitialised cred */
-#define RPCAUTH_LOOKUP_RCU 0x02 /* lock-less lookup */
/*
* Client authentication ops
@@ -132,7 +114,6 @@
int (*hash_cred)(struct auth_cred *, unsigned int);
struct rpc_cred * (*lookup_cred)(struct rpc_auth *, struct auth_cred *, int);
struct rpc_cred * (*crcreate)(struct rpc_auth*, struct auth_cred *, int, gfp_t);
- int (*list_pseudoflavors)(rpc_authflavor_t *, int);
rpc_authflavor_t (*info2flavor)(struct rpcsec_gss_info *);
int (*flavor2info)(rpc_authflavor_t,
struct rpcsec_gss_info *);
@@ -146,33 +127,28 @@
void (*crdestroy)(struct rpc_cred *);
int (*crmatch)(struct auth_cred *, struct rpc_cred *, int);
- struct rpc_cred * (*crbind)(struct rpc_task *, struct rpc_cred *, int);
- __be32 * (*crmarshal)(struct rpc_task *, __be32 *);
+ int (*crmarshal)(struct rpc_task *task,
+ struct xdr_stream *xdr);
int (*crrefresh)(struct rpc_task *);
- __be32 * (*crvalidate)(struct rpc_task *, __be32 *);
- int (*crwrap_req)(struct rpc_task *, kxdreproc_t,
- void *, __be32 *, void *);
- int (*crunwrap_resp)(struct rpc_task *, kxdrdproc_t,
- void *, __be32 *, void *);
+ int (*crvalidate)(struct rpc_task *task,
+ struct xdr_stream *xdr);
+ int (*crwrap_req)(struct rpc_task *task,
+ struct xdr_stream *xdr);
+ int (*crunwrap_resp)(struct rpc_task *task,
+ struct xdr_stream *xdr);
int (*crkey_timeout)(struct rpc_cred *);
- bool (*crkey_to_expire)(struct rpc_cred *);
char * (*crstringify_acceptor)(struct rpc_cred *);
+ bool (*crneed_reencode)(struct rpc_task *);
};
extern const struct rpc_authops authunix_ops;
extern const struct rpc_authops authnull_ops;
int __init rpc_init_authunix(void);
-int __init rpc_init_generic_auth(void);
int __init rpcauth_init_module(void);
void rpcauth_remove_module(void);
-void rpc_destroy_generic_auth(void);
void rpc_destroy_authunix(void);
-struct rpc_cred * rpc_lookup_cred(void);
-struct rpc_cred * rpc_lookup_cred_nonblock(void);
-struct rpc_cred * rpc_lookup_generic_cred(struct auth_cred *, int, gfp_t);
-struct rpc_cred * rpc_lookup_machine_cred(const char *service_name);
int rpcauth_register(const struct rpc_authops *);
int rpcauth_unregister(const struct rpc_authops *);
struct rpc_auth * rpcauth_create(const struct rpc_auth_create_args *,
@@ -182,52 +158,37 @@
struct rpcsec_gss_info *);
int rpcauth_get_gssinfo(rpc_authflavor_t,
struct rpcsec_gss_info *);
-int rpcauth_list_flavors(rpc_authflavor_t *, int);
struct rpc_cred * rpcauth_lookup_credcache(struct rpc_auth *, struct auth_cred *, int, gfp_t);
void rpcauth_init_cred(struct rpc_cred *, const struct auth_cred *, struct rpc_auth *, const struct rpc_credops *);
struct rpc_cred * rpcauth_lookupcred(struct rpc_auth *, int);
-struct rpc_cred * rpcauth_generic_bind_cred(struct rpc_task *, struct rpc_cred *, int);
void put_rpccred(struct rpc_cred *);
-__be32 * rpcauth_marshcred(struct rpc_task *, __be32 *);
-__be32 * rpcauth_checkverf(struct rpc_task *, __be32 *);
-int rpcauth_wrap_req(struct rpc_task *task, kxdreproc_t encode, void *rqstp, __be32 *data, void *obj);
-int rpcauth_unwrap_resp(struct rpc_task *task, kxdrdproc_t decode, void *rqstp, __be32 *data, void *obj);
+int rpcauth_marshcred(struct rpc_task *task,
+ struct xdr_stream *xdr);
+int rpcauth_checkverf(struct rpc_task *task,
+ struct xdr_stream *xdr);
+int rpcauth_wrap_req_encode(struct rpc_task *task,
+ struct xdr_stream *xdr);
+int rpcauth_wrap_req(struct rpc_task *task,
+ struct xdr_stream *xdr);
+int rpcauth_unwrap_resp_decode(struct rpc_task *task,
+ struct xdr_stream *xdr);
+int rpcauth_unwrap_resp(struct rpc_task *task,
+ struct xdr_stream *xdr);
+bool rpcauth_xmit_need_reencode(struct rpc_task *task);
int rpcauth_refreshcred(struct rpc_task *);
void rpcauth_invalcred(struct rpc_task *);
int rpcauth_uptodatecred(struct rpc_task *);
int rpcauth_init_credcache(struct rpc_auth *);
void rpcauth_destroy_credcache(struct rpc_auth *);
void rpcauth_clear_credcache(struct rpc_cred_cache *);
-int rpcauth_key_timeout_notify(struct rpc_auth *,
- struct rpc_cred *);
-bool rpcauth_cred_key_to_expire(struct rpc_auth *, struct rpc_cred *);
char * rpcauth_stringify_acceptor(struct rpc_cred *);
static inline
-struct rpc_cred * get_rpccred(struct rpc_cred *cred)
+struct rpc_cred *get_rpccred(struct rpc_cred *cred)
{
- if (cred != NULL)
- atomic_inc(&cred->cr_count);
- return cred;
-}
-
-/**
- * get_rpccred_rcu - get a reference to a cred using rcu-protected pointer
- * @cred: cred of which to take a reference
- *
- * In some cases, we may have a pointer to a credential to which we
- * want to take a reference, but don't already have one. Because these
- * objects are freed using RCU, we can access the cr_count while its
- * on its way to destruction and only take a reference if it's not already
- * zero.
- */
-static inline struct rpc_cred *
-get_rpccred_rcu(struct rpc_cred *cred)
-{
- if (atomic_inc_not_zero(&cred->cr_count))
+ if (cred != NULL && refcount_inc_not_zero(&cred->cr_count))
return cred;
return NULL;
}
-#endif /* __KERNEL__ */
#endif /* _LINUX_SUNRPC_AUTH_H */
--
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